Salesforce.com’s plans for a 14 acre campus adjacent to UCSF Mission Bay have been put on hold, leaving a gaping hole in Mayor Lee’s plans to turn South of Market into the “innovation capitol of the world.”

The cloud computing giant blamed rapid growth for their decision to suspend expansion into the Mission Bay area. The company recently acquired 400,000 square feet of space at 50 Fremont Street in downtown.

“It is clear to us that our original Mission Bay strategy may not provide enough space and flexibility for our needs,” the company said. “This means we are suspending development on our Mission Bay campus and instead focusing on further expansion of our downtown San Francisco campus.”